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any compound containing a carbohydrate molecule (sugar), particularly any such natural product in plants, convertible, by hydrolytic cleavage, into a sugar and a nonsugar component (aglycone), and named specifically for the sugar contained, such as fructoside (fructose), glucoside (glucose), or pentoside (pentose).
cardiac glycoside any of a group of glycosides occurring in certain plants (Digitalis, etc.), having a characteristic action on the contractile force of the heart muscle.
Any of several glycosides obtained chiefly from plant sources such as the foxglove, used medicinally to increase the force of contraction of heart muscle and to regulate heartbeats.
cardiac glycosidePharmacology A drug that blocks the Na+/K+ pump
cardiac glycosidepositive inotrope drug which increases force of cardiac contraction and reduces atrioventricular node conductivity; used to control atrial fibrillation, e.g. digoxin
any compound containing a carbohydrate moiety (sugar), particularly any such natural product in plants, convertible, by hydrolytic cleavage, into a sugar and a nonsugar component (aglycone), and named specifically after the sugar contained, as glucoside (glucose), pentoside (pentose), fructoside (fructose), etc.